it's a type of energy. so it is definitely measured in JOULES(J).
all types of energy are measured in JOULES(J).
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This is a two step problem: First you must find the Greatest Possible Error (GPE)? To find the greates possible error, you must acknowledge the significant place value. In this case because it is measured to 3cm the answer is 1cm. The GPE is half of 1cm which is 0.5cm. Second the percent of error is a ratio of the GPE/Original measurement. In this case it is 0.5/3 is 0.16666666667 therefore the answer is: approximately 16.67% or 16.7% or 17%
GPE = mgh = 4 x 9.8 x 3 = 117.6J
Then the surface area of the solid would be measured in square feet
Then what do you measure it with?
The height of a cylinder all depends on what cylinder you are talking about. There is only an exact height if you have measured it yourself or someone has already measured it for you.